Ejot Gmbh and Co. Kg

Ejot Verbindungstechnik Gmbh & Co. Kb

Wilfried Pinzl

Eberhard Christ

Ralph J Hellmig

Jörg Thiem

Ilir Selimi

Uwe Rausch

Gerd Weigel

Hannes Brandau

Andreas Kind

A securing element includes a threaded region, wherein a securing rotational direction and an axial clamping direction are defined by the thread design. The securing element has a head with a head lower face which faces the clamping direction and via which a force-fitting connection with a component can be produced. The head is designed such that the head lower face has an edge region at a radial distance from the head center, and the contour of the head lower face runs opposite the clamping direction in the direction of the head center starting from the edge region, whereby a spring effect can be produced. The edge region has a changing circumferential level in the axial direction. Opposite the securing rotational direction, the circumferential level rises at a rising angle of maximally 15&#xb0; in the clamping direction over a central angle of at least 65&#xb0;.

Securing element

A connection element for an interlocking connection to at least one component includes at least one component held between the connection element and a securing element wherein the connection element and the securing element enter into a friction welded connection, having a head with a drive and a shaft having at least two cutting structures on a front side. The at least two cutting structures have cutting edges situated in a cutting plane, wherein the cutting plane borders the shaft, and the at least two cutting structures are also spaced apart in the circumferential direction and define a cutting diameter. A cross-section of the shaft has a reduced extension between the cutting structures relative to the cutting diameter, wherein the area of the reduced extension extends in the axial direction at least with the length of the cutting diameter from the cutting structures in the direction of the head.

Connection element for an interlocking connection to at least one component

The invention relates to a screw having a head, an adjoining retaining section and a functional tip for use as a self-tapping screw. The functional tip is of greater hardness than the retaining section. The entire screw is made of hardened low-alloy carbon steel. The special feature of this screw is that its functional tip has a higher carbon and/or nitrogen content than its retaining section.

Screw made of low-alloy carbon steel, and method for producing such a screw

The invention relates to a screw having a screw head (), a screw shank () and a corrugated conical flange () which decreases in thickness toward the outside, which flange () will abut on a component part as the screw is being screwed into the latter. The two lateral surfaces () of the flange () from the screw shank () to the outer edge () of the flange taper continuously toward the outside with the thickness of the flange () decreasing at the same time, with its corrugation () extending substantially over the entire radial width of the flange ().

Screw having a screw head, a screw shank and a corrugated conical flange

A supporting sleeve configured for introduction into a penetration in a component. The hole of the supporting sleeve is penetrated by a fixing pin that is insertable into a carrier so as to fix the component on a carrier. The supporting sleeve includes a closed ring-shaped cross section and a plurality of axially and inwardly extending recesses extending over the entire length of the supporting sleeve and each of the recesses is formed by inwardly bent walls and a base connecting those walls, the walls being generally radially oriented and configured such that when radial pressure is applied to the supporting sleeve upon introduction into the penetration, each recess moves closer to each other.

Supporting bushing

Attachment device for a component to be attached to a plate, which is three-dimensionally adjustable with respect to the plate. The attachment includes a sleeve which is inserted into an opening of the plate and locked with respect to the plate by means of rotation. A tubular piece with a through hole is screwed into the sleeve into which a screw is inserted with substantial positive allowance for radial adjustability. This screw rests with its head at one end of the tubular piece and supports with its threaded part the component which abuts to the other end of tubular piece which, for axial adjustment, is optionally far screwed in.

Growing community of inventors

Tambach-Dietharz, Germany

Wilfried Pinzl